Tdk Corporation

Eiko Wakata

Kenichi Yoshida

Isao Abe

Shigemitsu Tomaki

Daiki Ishii

Mitsuhiro Tomikawa

Disclosed herein is a multilayer capacitor that includes a capacitor layer having a plurality of odd-numbered electrode layers which are positioned at odd-numbered rows and a plurality of even-numbered electrode layers which are positioned at even-numbered rows. The capacitor layer includes a first side surface to which the odd-numbered electrode layers are exposed, a second side surface to which the even-numbered electrode layers are exposed, and a first planar region. The first external terminal covers the first side surface so as to be connected to the odd-numbered electrode layers. The second external terminal covers the second side surface so as to be connected to the even-numbered electrode layers. The first external terminal covers also the first planar region and is connected to the first internal electrode layer through a first via conductor extending in a stacking direction.

Multilayer capacitor

Disclosed herein is an LC filter that includes a conductive substrate, a first capacitive insulating film having one surface covered with the conductive substrate and other surface covered with a first capacitive electrode, a first inductor pattern having one end connected to the first capacitive electrode, a first terminal electrode connected to other end of the first inductor pattern, and a common terminal electrode connected to the conductive substrate.

LC filter

An electronic component includes a first electronic component and a second electronic component that is stacked on the first electronic component. A second electrode layer of the first electronic component includes a plurality of divided electrode layers, and a pair of electrodes of the second electronic component are electrically connected to different electrode layers included in the plurality of electrode layers of the second electrode layer, and a first electrode layer of the first electronic component is divided into a plurality of electrode layers to correspond to the electrode layers which are included in the second electrode layer and which are electrically connected to the pair of electrodes of the second electronic component.

Electronic component

A bandpass filter includes a layered structure including a plurality of stacked dielectric layers, and first to third resonators provided within the layered structure. In terms of circuit configuration, the second resonator is located between the first and third resonators. The first resonator includes a first inductor and a first capacitor. The second resonator includes a second inductor and a second capacitor. The third resonator includes a third inductor and a third capacitor. The second inductor is disposed at a position different from that of each of the first and third inductors in the stacking direction of the dielectric layers. The second inductor is lower in inductance than the first and third inductors. The second capacitor is higher in capacitance than the first and third capacitors.

Layered bandpass filter

A bandpass filter includes three resonators of which adjacent two are electromagnetically coupled to each other, and two coupling paths connected in parallel for forming capacitive coupling between non-adjacent two of the resonators. Each of the two coupling paths includes at least one capacitor and an inductor connected in series. The two coupling paths function to form an attenuation pole at a frequency lower than the passband frequencies in the pass attenuation characteristics of the bandpass filter.

Growing community of inventors

Tokyo, Japan

Eiko Wakata